STM32实时钟设计

STM32 实时钟设计 实现功能 1 定时器用于实时钟的月日 时分和秒计时 2 2 个按键用于实时钟的显示切换和设置 3 LCD 用于实时钟的月日 时分和秒显示 4 通过 UART 接口在微机上显示和设置实时钟 按键要求 程序如下 include stm32f10 x h include misc h include uart my h include stdio h include stm32f10 x exti h define NVIC SETENA1 volatile unsigned long 0 xe000e104 int Rx 0 int receive 0 u8 temp int time 6 int led 0 x200 int lcddata 5 2 0 int runnian 1 flag 2 dian 0 flag2 1 timer 0 char rtc 30 char no 0 char lcd code 16 编码 0 xeb 0 0 x0a 1 0 xad 2 0 x8f 3 0 x4e 4 0 xc7 5 0 xe7 6 0 x8a 7 0 xef 8 0 xcf 9 0 x7e A 0 x37 B 0 x71 C 0 x1f D 0 x75 E 0 x74 F private function void LCD Write int data int bit void Systick Proc void void Lcd Proc void void lcd display0 void void lcd display1 void void lcd display2 void void lcd display3 void void lcd display4 void void lcd display5 void void lcd display6 void void Uart IO Config void void LCD IO Config void void Led IO Config void void Uart IO Config void void Button IO Config void void EXTILineConfig void void NVIC Configuration void void Uart Init void void LCD Init void void Systick Init void void LED Proc void void Lcd Proc void void Uart void void uartPuts u8 s void Uart r void void USART GetS Time void int main void SystemInit Systick Init SystemInit SysTick Config 9000000 LCD IO Config Led IO Config Uart IO Config Button IO Config EXTILineConfig NVIC Configuration Uart Init LCD Init while 1 Systick Proc Lcd Proc Uart r void Systick Proc void if NVIC STCSR if time 0 60 time 0 0 if time 1 60 time 1 0 if time 2 24 time 2 0 switch time 4 case 1 case 3 case 5 case 7 case 8 case 10 case 12 if time 3 32 if time 4 13 time 4 1 break case 2 if runnian if time 3 30 if time 4 13 time 4 0 else if time 3 29 if time 4 13 time 4 0 break case 4 case 6 case 9 case 11 if time 3 31 if time 4 13 time 4 0 break default break time 4 0 time 3 0 sprintf rtc d d d d d time 4 time 3 time 2 time 1 time 0 格式化输入出 处 sprintf rtc2 lcddata 0 0 time 0 10 lcddata 0 1 time 0 10 lcddata 1 0 time 1 10 lcddata 1 1 time 1 10 lcddata 2 0 time 2 10 lcddata 2 1 time 2 10 lcddata 3 0 time 3 10 lcddata 3 1 time 3 10 lcddata 4 0 time 4 10 lcddata 4 1 time 4 10 之前 开始以分钟之后才能显示 放在前边 sprintf rtc 日期与时间是 d d d d d time 4 time 3 time 2 time 1 time 0 格式化输入出处 Uart while USART GetFlagStatus USART1 USART FLAG TXE RESET USART SendData USART1 0 xd while USART GetFlagStatus USART1 USART FLAG TXE RESET USART SendData USART1 0 xa LED Proc void Lcd Proc void int temp 8 temp 0 lcd code min display h 分钟十位高四位 temp 1 lcd code min display h 分钟十位低四位 temp 2 lcd code min display l 分钟个位高四位 temp 3 lcd code min display l 分钟个位低四位 temp 4 lcd code sec display h 秒钟十位高四位 temp 5 lcd code sec display h 秒钟十位低四位 temp 6 lcd code sec display l 秒钟个位高四位 temp 7 lcd code sec display l 秒钟个位低四位 switch flag case 0 lcd display0 break case 1 lcd display1 break case 2 lcd display2 break case 3 lcd display3 break case 4 lcd display4 break case 5 lcd display5 break case 6 lcd display6 break default break void lcd display0 void 时分显示 LCD Write 5 14 0 8 lcd code lcddata 2 1 dian 4 17 移位出现问题 LCD Write 5 14 2 8 lcd code lcddata 2 0 17 移位这一块 LCD Write 5 14 4 8 lcd code lcddata 1 1 17 LCD Write 5 14 6 8 lcd code lcddata 1 0 17 void lcd display1 void 月日显示 LCD Write 5 14 0 8 lcd code lcddata 4 1 17 移位出现问题 LCD Write 5 14 2 8 lcd code lcddata 4 0 17 移位这一块 LCD Write 5 14 4 8 lcd code lcddata 3 1 17 LCD Write 5 14 6 8 lcd code lcddata 3 0 17 void lcd display2 void 分秒显示 LCD Write 5 14 0 8 lcd code lcddata 1 1 dian 4 17 移位出现问题 LCD Write 5 14 2 8 lcd code lcddata 1 0 17 移位这一块 LCD Write 5 14 4 8 lcd code lcddata 0 1 17 LCD Write 5 14 6 8 lcd code lcddata 0 0 17 void lcd display3 void 月设置显示 if dian LCD Write 5 14 0 8 no 17 移位出现问题 LCD Write 5 14 2 8 no 17 移位这一块 LCD Write 5 14 4 8 lcd code lcddata 3 1 17 LCD Write 5 14 6 8 lcd code lcddata 3 0 17 else LCD Write 5 14 0 8 lcd code lcddata 4 1 17 移位出现问题 LCD Write 5 14 2 8 lcd code lcddata 4 0 17 移位这一块 LCD Write 5 14 4 8 lcd code lcddata 3 1 17 LCD Write 5 14 6 8 lcd code lcddata 3 0 17 void lcd display4 void 天设置显示 if dian LCD Write 5 14 0 8 lcd code lcddata 4 1 17 移位出现问题 LCD Write 5 14 2 8 lcd code lcddata 4 0 17 移位这一块 LCD Write 5 14 4 8 no 17 LCD Write 5 14 6 8 no 17 else LCD Write 5 14 0 8 lcd code lcddata 4 1 17 LCD Write 5 14 2 8 lcd code lcddata 4 0 17 LCD Write 5 14 4 8 lcd code lcddata 3 1 17 LCD Write 5 14 6 8 lcd code lcddata 3 0 17 void lcd display5 void 时设置显示 if dian LCD Write 5 14 0 8 no 17 移位出现问题 LCD Write 5 14 2 8 no 17 移位这一块 LCD Write 5 14 4 8 lcd code lcddata 1 1 17 LCD Write 5 14 6 8 lcd code lcddata 1 0 17 else LCD Write 5 14 0 8 lcd code lcddata 2 1 17 移位出现问题 LCD Write 5 14 2 8 lcd code lcddata 2 0 17 移位这一块 LCD Write 5 14 4 8 lcd code lcddata 1 1 17 LCD Write 5 14 6 8 lcd code lcddata 1 0 17 void lcd display6 void 分设置显示 if dian LCD Write 5 14 4 8 no 17 移位出现问题 LCD Write 5 14 6 8 no 17 移位这一块 LCD Write 5 14 0 8 lcd code lcddata 2 1 17 LCD Write 5 14 2 8 lcd code lcddata 2 0 17 else LCD Write 5 14 0 8 lcd code lcddata 2 1 17 移位出现问题 LCD Write 5 14 2 8 lcd code lcddata 2 0 17 移位这一块 LCD Write 5 14 4 8 lcd code lcddata 1 1 17 LCD Write 5 14 6 8 lcd code lcddata 1 0 17 void LCD IO Config void GPIO InitTypeDef GPIO InitStructure RCC APB2PeriphClockCmd RCC APB2Periph GPIOC RCC APB2Periph GPIOD ENABLE GPIO InitStructure GPIO Pin GPIO Pin 10 GPIO Pin 11 GPIO Pin 12 GPIO InitStructure GPIO Mode GPIO Mode Out PP GPIO InitStructure GPIO Speed GPIO Speed 50MHz GPIO Init GPIOC void Button IO Config void GPIO InitTypeDef GPIO InitStructure RCC APB2PeriphClockCmd RCC APB2Periph GPIOB RCC APB2Periph AFIO ENABLE GPIO InitStructure GPIO Pin GPIO Pin 14 GPIO Pin 15 GPIO InitStructure GPIO Mode GPIO Mode IN FLOATING 配置错误 GPIO InitStructure GPIO Speed GPIO Speed 50MHz GPIO Init GPIOB void Led IO Config void GPIO InitTypeDef GPIO InitStructure RCC APB2PeriphClockCmd RCC APB2Periph GPIOC ENABLE Configure PC 06 PC 07 PC 08 and PC 09 as output push pull GPIO InitStructure GPIO Pin GPIO Pin 6 GPIO Pin 7 GPIO Pin 8 GPIO Pin 9 GPIO InitStructure GPIO Mode GPIO Mode Out PP GPIO InitStructure GPIO Speed GPIO Speed 50MHz GPIO Init GPIOC void Uart IO Config void GPIO InitTypeDef GPIO InitStructure USART ClearITPendingBit USART1 USART IT TC USART IT RXNE RX RCC APB2PeriphClockCmd RCC APB2Periph GPIOA RCC APB2Periph AFIO ENABLE GPIO InitStructure GPIO Pin GPIO Pin 10 接收 GPIO InitStructure GPIO Mode GPIO Mode IN FLOATING GPIO Init GPIOA TX GPIO InitStructure GPIO Pin GPIO Pin 9 发送 GPIO InitStructure GPIO Speed GPIO Speed 50MHz GPIO InitStructure GPIO Mode GPIO Mode AF PP GPIO Init GPIOA void EXTILineConfig void EXTI InitTypeDef EXTI InitStructure GPIO EXTILineConfig GPIO PortSourceGPIOB GPIO PinSource14 GPIO EXTILineConfig GPIO PortSourceGPIOB GPIO PinSource15 EXTI InitStructure EXTI Line EXTI Line14 EXTI Line15 EXTI InitStructure EXTI Mode EXTI Mode Interrupt EXTI InitStructure EXTI Trigger EXTI Trigger Falling EXTI InitStructure EXTI LineCmd ENABLE EXTI Init void NVIC Configuration void NVIC InitTypeDef NVIC InitStructure NVIC PriorityGroupConfig NVIC PriorityGroup 2 抢占优先级组 4 2 位抢占优先级 2 位子优先级 Enable the EXTI14 Interrupt on PB 14 sw3 输入时间 NVIC InitStructure NVIC IRQChannel EXTI15 10 IRQn 对于相同中断号的中断无 法设置抢断优先级 NVIC InitStructure NVIC IRQChannelPreemptionPriority 0 NVIC InitStructure NVIC IRQChannelSubPriority 1 NVIC InitStructure NVIC IRQChannelCmd ENABLE NVIC Init Enable the EXTI15 Interrupt on PB 15 sw2 led 方向 NVIC InitStructure NVIC IRQChannel EXTI15 10 IRQn NVIC InitStructure NVIC IRQChannelPreemptionPriority 1 NVIC InitStructure NVIC IRQChannelSubPriority 2 NVIC InitStructure NVIC IRQChannelCmd ENABLE NVIC Init void LED Proc void if NVIC STCSR 右环移 if led 0 x20 led 0 x200 GPIOC BSRR 0 x03C0 灭所有灯 写 1 寄存器 BRR 写 0 寄存器 GPIOC ODR 亮指定 void Uart void uartPuts u8 rtc void Uart r void if receive USART GetS Time receive 0 USART ITConfig USART1 USART IT RXNE ENABLE void USART1 IRQHandler void if USART ReceiveData USART1 s receive 1 USART ITConfig USART1 USART IT RXNE DISABLE void EXTI15 10 IRQHandler void int i 1000 if EXTI GetITStatus EXTI Line14 SET EXTI ClearITPendingBit EXTI Line14 switch flag case 0 case 1 flag break case 2 flag 0 break case 3 case 4 case 5 flag break case 6 flag 0 break default flag 0 if EXTI GetITStatus EXTI Line15 SET while i EXTI ClearITPendingBit EXTI Line15 switch flag case 0 case 1 case 2 flag 3 break case 3 if time 4 13 time 4 0 break case 4 if time 3 32 time 3 0 break case 5 if time 2 25 time 2 0 break case 6 if time 1 60 time 1 0 break default break LED Water MCU STM32F103RBT6 Crystal External Input 8MHz Author FHL Date 2011 11 30 Function 实现数字时钟功能 并通过 LM046 显示 Copyright c 2000 2011 FHL Co Ltd All rights reserved Includes include uart my h include stdio h include stm32f10 x h define NVIC SETENA1 volatile unsigned long 0 xe000e104 Local includes extern int time 5 extern u8 temp extern int Rx Private typedef Private define Private macro Private variables extern int sec display l sec display h extern int min display l min display h extern int hour display l hour display h Private functions void Uart Init void USART InitTypeDef USART InitStructure USART ClockInitTypeDef USART ClockInitStructure RCC APB2PeriphClockCmd RCC APB2Periph GPIOA RCC APB2Periph AFIO RCC APB2Periph USART1 ENABLE 未加 usart1 开时钟 USART InitStructure USART BaudRate 115200 USART InitStructure USART WordLength USART WordLength 8b USART InitStructure USART StopBits USART StopBits 1 USART InitStructure USART Parity USART Parity No USART InitStructure USART Mode USART Mode Rx USART Mode Tx USART InitStructure USART HardwareFlowControl USART HardwareFlowControl None USART Init USART1 NVIC SETENA1 0 x20 使能 USART1 接收中断 USART ITConfig USART1 USART IT RXNE ENABLE 使能 USART1 发送中断 USART ITConfig USART1 USART IT TXE ENABLE 使能串口 USART Cmd USART1 ENABLE void uartPuts u8 s while s 0 while USART GetFlagStatus USART1 USART FLAG TXE RESE